21
Ardeean Scoccia, Garrett Wade Hoehn: Dual functional drain for a heating, ventilating, and air conditioning assembly. Delphi Technologies, Patrick M Griffin, July 23, 2002: US06422301 (10 worldwide citation)

A heating, ventilating, and air conditioning (HVAC) assembly for a motor vehicle includes an evaporator core for cooling air and a heater core for heating air. A heater casing of the HVAC assembly surrounds the heater core. A drain portion of the HVAC assembly extends from the heater casing and incl ...


22
Clifford Conrad Federspiel: Method and apparatus for converting constant-volume supply fans to variable flow operation. Federspiel Corporation, Townsend and Townsend and Crew, June 1, 2010: US07726582 (9 worldwide citation)

A control strategy for supply fans in constant-volume heating, ventilating, and air-conditioning (HVAC) systems that reduces the speed of the fan at part-load conditions is provided. The invention consists of a constant-volume HVAC system, wireless discharge air temperature sensors, wireless hot sou ...


23
Stanley J Ellis: Self-sealing reinforcement tie rod for ventilating ducts. William L Chapin, September 12, 2000: US06116833 (9 worldwide citation)

A tie rod for reinforcing heating, ventilating and air conditioning (HVAC) ducts against excessive wall flexure in response to positive and/or negative static or dynamic pressure differentials between the interior and exterior of the duct includes a threaded steel rod having a pair of abutment struc ...


24
Tobin E Farrand, Kevin Snow, Dennis Peng, David A Bryan: Identifying and filtering incoming telephone calls to enhance privacy. Ooma, Carr & Ferrell, January 31, 2017: US09560198 (8 worldwide citation)

A computer-implemented method for filtering a telephone call is provided. The method may comprise: receiving from a caller the telephone call directed to a communication device associated with an intended call recipient, the Internet being disposed between a computer implementing the method and the ...


25
Gerhard Allan Dage: Method of air conditioner operation for minimizing moisture condensed on evaporator core. Ford Motor Company, Roger L May, Frank G McKenzie, May 30, 2000: US06067808 (7 worldwide citation)

A method for reducing overall workload of a vehicle air conditioning (a/c) system takes into account the humidity conditions. A high humidity condition can be detected by monitoring windshield wiper operation for a threshold period of time. High humidity exists during rain or fog and wiper operation ...


26
SONG YONG SOO, HAN SEONG HO, CHOI SUNG KYOU: TRAIN NETWORK DATA COMMUNICATION SYSTEM USING POWER LINE AND METHOD THEREOF, DATENÜBERTRAGUNGSSYSTEM FÜR EIN EISENBAHNNETZ MITTELS STROMLEITUNG UND VERFAHREN DAFÜR, SYSTÈME DE COMMUNICATION DE DONNÉES DE RÉSEAU DE TRAIN METTANT EN OEUVRE UNE LIGNE ÉLECTRIQUE ET PROCÉDÉ ASSOCIÉ. KOREA RAILROAD RES INST, August 15, 2012: EP2487803-A1 (7 worldwide citation)

Disclosed herein is a train network system and method using a power line. The train network data communication system includes a TCMS control unit configured to send control commands to a PLC adaptor via the power line using FSK communication in order to perform low-speed PLC data communication, and ...


27
Clifford C Federspiel: Method and apparatus for coordinating the control of HVAC units. Federspiel Corporation, Kilpatrick Townsend & Stockton, David B Raczskowski, July 17, 2012: US08224489 (6 worldwide citation)

A control strategy for heating, ventilating, and air-conditioning (HVAC) units used to condition the environment in data centers and other commercial buildings such as retail stores with an open-plan design is provided to coordinate the operation of the actuators of the HVAC units. A supervisory con ...


28
Silvio Porciatti: T-bar for suspended ceiling with heat dissipation system for LED lighting. Heisler & Associates, January 30, 2018: US09879850 (5 worldwide citation)

The T-bar includes an elongate rigid spine extending between terminal ends including either a fixed anchor or adjustable anchor for attachment to adjacent T-bars or other supports. An upper heat sink is provided on an upper portion of the spine to enhance heat transfer from the T-bar to air surround ...


29
Mark D McBroom: Method and system for automatically controlling an automotive HVAC unit. Ford Motor Company, Raymond L Coppiellie, Roger L May, July 28, 1998: US05785244 (5 worldwide citation)

A method and system for automatically controlling a heating, ventilating, and air conditioning (HVAC) unit of a vehicle includes multiple electric motors for actuating multiple respective doors directing air flow through the HVAC unit and temperature of the air flow. A plurality of sensors sense a p ...


30
Jurgen Mario Vangeel, Mark Henricus Verberkt, Peter Fitski: Systems and methods for lighting control. Philips Lighting Holding, Meenakshy Chakravorty, August 8, 2017: US09730298 (5 worldwide citation)

Lighting units, systems, and methods are described herein for determining whether occupancy detections are legitimate or not. Methods and systems are further described herein for powering down a network of power over ethernet (PoE) components.